Presumed insect sting-induced Takotsubo cardiomyopathy

Area of Science:

• Cardiology
• Toxicology
• Allergy and Immunology

Background:

• Takotsubo cardiomyopathy (TTC), or stress-induced cardiomyopathy, is a transient left ventricular dysfunction.
• Cardiovascular comorbidities increase the risk of adverse outcomes in patients with TTC.
• Insect stings are rarely associated with cardiac events, making this case unique.

Observation:

• A patient with pre-existing cardiovascular comorbidities experienced an insect sting.
• Following the sting, the patient developed symptoms consistent with Takotsubo cardiomyopathy.
• The clinical presentation necessitated careful consideration of treatment options.

Findings:

• The study documents a rare instance of insect sting-induced Takotsubo cardiomyopathy.
• Epinephrine use was evaluated for safety in this high-risk cardiovascular patient.
• A modified venom immunotherapy protocol was successfully employed for desensitization.

Implications:

• This case underscores the potential for insect stings to precipitate TTC, even in patients with cardiovascular comorbidities.
• It highlights the importance of risk-benefit assessment when considering treatments like epinephrine in such scenarios.
• The successful use of modified venom immunotherapy suggests a potential strategy for managing high-risk allergic patients with TTC.